EN 4641-104:2010
(Main)Aerospace series - Cables, optical 125 μm diameter cladding - Part 104: Semi-loose, ruggedized duplex construction 62,5/125 µm GI fibre nominal, 4,95 mm outside diameter - Product standard
Aerospace series - Cables, optical 125 μm diameter cladding - Part 104: Semi-loose, ruggedized duplex construction 62,5/125 µm GI fibre nominal, 4,95 mm outside diameter - Product standard
This product standard specifies the general characteristics, conditions for qualification, acceptance and quality assurance for a fibre optic cable with two 62,5/125 µm graded index fibre cores, 4,95 mm nominal outside diameter and of semi-loose construction. The basic construction is a pair of the cables defined in EN 4641-102 with added sheaths for ruggedized usages.
Luft- und Raumfahrt - Lichtwellenleiterkabel, Mantelaußendurchmesser 125 µm - Teil 104: Kompaktader, widerstandsfähige Duplexkonstruktion, 62,5/125 µm GI-Faser, Kabelaußendurchmesser 4,95 mm - Produktnorm
Diese Produktnorm legt die allgemeinen Eigenschaften, Bedingungen für Qualifikation, Abnahme und
Qualitätssicherung für ein Lichtwellenleiterkabel mit zwei 62,5/125 μm Gradientenfaserkernen, Kabelaußendurchmesser
4,95 mm und Kompaktaderaufbau, fest. Die Grundkonstruktion ist ein Paar des in EN 4641-102
festgelegten Kabels mit zusätzlichen Mänteln für widerstandsfähige Anwendungen.
Série aérospatiale - Câble, optique, diamètre extérieur de la gaine optique 125 µm - Partie 104 : Câble à structure semi-libre, renforcée, double voie fibre à gradient d'indice 62,5/125 µm, diamètre extérieur 4,95 mm - Norme de produit
Aeronavtika - Kabli, optični, zunanji premer obloge 125 µm - 104. del: Poltrdi kabli lahke izvedbe 62,5/125 µm, zunanji premer vlakna 4,95 mm - Standard za izdelek
Ta standard za proizvod določa glavne značilnosti, kvalifikacijske pogoje ter zagotavljanje sprejemljivost in kakovosti za optični kabel z dvema vlaknenima jedroma, s stopnjevalnim lomnim količnikom 62,5/125 µm, s 4,95 mm nominalnim zunanjim premerom in poltrdo konstrukcijo. Osnovna konstrukcija je par določenih kablov z dodanimi tulci za robustne uporabe, opredeljen v EN 4641-102.
General Information
- Status
- Published
- Publication Date
- 23-Nov-2010
- Withdrawal Date
- 30-May-2011
- Technical Committee
- ASD-STAN - Aerospace
- Drafting Committee
- ASD-STAN/D 2 - Electrical
- Current Stage
- 6060 - Definitive text made available (DAV) - Publishing
- Start Date
- 24-Nov-2010
- Completion Date
- 24-Nov-2010
Relations
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
Overview
EN 4641-104:2010 is a CEN product standard in the Aerospace series that defines a semi-loose, ruggedized duplex optical cable for aircraft and other aerospace applications. It covers a two‑core cable with 62,5/125 µm graded‑index (GI) fibres, a nominal outside diameter of 4.95 mm, and construction based on a pair of EN 4641-102 component cables with added sheaths for ruggedization. The standard specifies general characteristics, qualification and acceptance conditions, quality assurance and required test methods.
Key topics and technical requirements
- Core construction: Duplex semi‑loose assembly comprising two EN 4641‑102 fibre cables with PTFE barrier tape, fillers and an extruded fluoropolymer outer jacket.
- Fibre type & size: Two GI multimode fibres, 62.5/125 µm nominal.
- Dimensional & mechanical:
- Nominal outside diameter: 4.95 mm (±0.25 mm)
- Cable mass: ~26.5 g/m
- Minimum bend radius (installation/long term): 10 × OD (50 mm)
- Storage bend radius: 20 × OD (100 mm)
- Optical performance:
- Attenuation (20 °C): ≤ 4 dB/km at 850 nm; ≤ 2 dB/km at 1300 nm
- Numerical aperture: 0.275 ± 0.015
- Environmental range: Operating temperature −65 °C to +150 °C.
- Testing & qualification: Tests specified (per EN 3745-100 and EN 4641-102) include visual inspection, dimensional stability, fibre attenuation, temperature cycling, thermal shock, cold bend, flammability, abrasion, tensile, impact, cut‑through, torsion, flexure endurance, crush, extreme bend, smoke density and toxicity limits.
- Marking & identification: Marker tape under jacket or UV laser marking; marking must follow EN 2424 requirements; hot stamping prohibited. Outer jacket colour typically light purple unless otherwise specified.
- Storage & delivery: Packaging, labelling and delivery lengths per EN 4641-001; storage humidity < 90%, temperatures −65 °C to 85 °C, and cable tensile load < 30 N.
Applications and typical users
- Applications:
- Onboard aircraft data and avionics networks requiring ruggedized fibre runs
- Aerospace platforms exposed to extreme temperatures, vibration and abrasion
- Harsh‑environment installations (military aircraft, helicopters, space vehicles where applicable)
- Users:
- Aerospace cable manufacturers and component suppliers
- Aircraft OEMs, system integrators and wiring harness designers
- Qualification/test laboratories and procurement/quality assurance teams
Related standards
- EN 4641-102 (component semi‑loose 1.8 mm cable)
- EN 4641-001 (technical specification, packaging/labeling)
- EN 3745-100 (test methods - general)
- EN 2424 (marking of aerospace products)
- EN 3838 (user‑applied markings)
- EN 9133 (quality management for aerospace standard parts)
- TR 4647 (termination procedures)
Keywords: EN 4641-104, aerospace optical cable standard, ruggedized duplex construction, 62.5/125 µm GI fibre, semi‑loose cable, 4.95 mm OD, aviation fibre optic cable, optical cable qualification.
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Frequently Asked Questions
EN 4641-104:2010 is a standard published by the European Committee for Standardization (CEN). Its full title is "Aerospace series - Cables, optical 125 μm diameter cladding - Part 104: Semi-loose, ruggedized duplex construction 62,5/125 µm GI fibre nominal, 4,95 mm outside diameter - Product standard". This standard covers: This product standard specifies the general characteristics, conditions for qualification, acceptance and quality assurance for a fibre optic cable with two 62,5/125 µm graded index fibre cores, 4,95 mm nominal outside diameter and of semi-loose construction. The basic construction is a pair of the cables defined in EN 4641-102 with added sheaths for ruggedized usages.
This product standard specifies the general characteristics, conditions for qualification, acceptance and quality assurance for a fibre optic cable with two 62,5/125 µm graded index fibre cores, 4,95 mm nominal outside diameter and of semi-loose construction. The basic construction is a pair of the cables defined in EN 4641-102 with added sheaths for ruggedized usages.
EN 4641-104:2010 is classified under the following ICS (International Classification for Standards) categories: 49.060 - Aerospace electric equipment and systems; 49.090 - On-board equipment and instruments. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 4641-104:2010 has the following relationships with other standards: It is inter standard links to EN 3745-100:2008, EN 9133:2018, EN 4641-102:2025, EN 3838:2022, EN 2424:2008, EN 4641-001:2018, EN 4531-201:2016, EN 4531-101:2016, EN 4701-002:2016. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN 4641-104:2010 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Luft- und Raumfahrt - Lichtwellenleiterkabel, Claddingdurchmesser 125 µm - Teil 104: Halbfester Leiteraufbau GI 62,5/125 µm, Faser Kabelaußendurchmesser 4,95 mm - ProduktnormSérie aérospatiale - Câble, optique, diamètre extérieur de la gaine optique 125 µm - Partie 104 : Câble à structure semi libre, renforcée, double voie fibre à gradient d'indice 62,5/125 µm, diamètre extérieur 4,95 mm - Norme de produit49.060Aerospace electric equipment and systemsICS:Ta slovenski standard je istoveten z:EN 4641-104:2010SIST EN 4641-104:2011en01-december-2011SIST EN 4641-104:2011SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 4641-104
November 2010 ICS 49.060
English Version
Aerospace series - Cables, optical 125 µm diameter cladding - Part 104: Semi-loose, ruggedized duplex construction 62,5/125 µm GI fibre nominal, 4,95 mm outside diameter - Product standard
Série aérospatiale - Câble, optique, diamètre extérieur de la gaine optique 125 µm - Partie 104 : Câble à structure semi-libre, renforcée, double voie fibre à gradient d'indice 62,5/125 µm, diamètre extérieur 4,95 mm - Norme de produit
Luft- und Raumfahrt - Lichtwellenleiterkabel, Claddingdurchmesser 125 µm - Teil 104: Halbfester Leiteraufbau GI 62,5/125 µm, Faser Kabelaußendurchmesser 4,95 mm - Produktnorm This European Standard was approved by CEN on 2 July 2010.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2010 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 4641-104:2010: E SIST EN 4641-104:2011
1) Published as ASD-STAN Prestandard at the date of publication of this standard by Aerospace and Defence Industries Association of Europe-Standardization (ASD-STAN), (www.asd-stan.org). 2) Published as ASD-STAN Technical Report at the date of publication of this standard by Aerospace and Defence Industries Association of Europe-Standardization (ASD-STAN), (www.asd-stan.org). SIST EN 4641-104:2011
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